Article ID: 978385 - View products that this article applies to.
A cumulative update for daylight saving time (DST) changes that occur in several countries is now available. This update applies to computers that are running the following Microsoft products:
The update that is described in this article updates time zone data to account for changes in the time zones that are listed in this article. This cumulative update also addresses DST changes in several other countries that were updated in previous cumulative updates. We recommend that you install the latest DST updates for your operating system. For more information about an update for DST changes in several countries, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/976098/ )December 2009 cumulative time zone update for Microsoft Windows operating systems
For more information about how DST changes affect other Microsoft products, visit the following Microsoft Web site:
For more information about how to configure DST for Microsoft Windows operating systems, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/914387/ )How to configure daylight saving time for Microsoft Windows operating systems
Time zones that are updated
N. Central Asia Standard Time
Moves Almaty, Kazakhstan from N. Central Asia Standard Time to Central Asia Standard Time. N. Central Asia Standard Time and Central Asia Standard Time are both (GMT+06:00), but Central Asia Standard Time does not use DST.
Georgian Standard Time
Changes this time zone from (GMT+03:00) to (GMT+4:00). This time zone does not use DST.
North Asia East Standard Time
Removes “Ulan Bator” from the display name of this time zone.
Central Brazilian Standard Time
Adjusts the DST start and end dates for the central Brazil time zone.
E. South America Standard Time
Adjusts the DST start and end dates for the east South America time zone.
Israel Standard Time
Adjusts the DST start and end dates for the Israel time zone.
Egypt Standard Time
Adjusts the DST start and end dates for the Egypt time zone.
Ulan Bator Standard Time
Introduces the new Ulaanbaatar Time Zone without DST. The display name is (GMT+08:00) Ulaanbaatar.
Paraguay Standard Time
Adjusts the DST start and end dates for the Paraguay time zone.
Western Australia Standard Time
Removes DST for the Western Australia time zone.
Central Asia Standard Time
Changes the display name of this time zone from (GMT+06:00) Astana, Dhaka to (GMT+06:00) Astana.
Bangladesh Standard Time
Introduces the new Bangladesh time zone that does not use DST. Te display name is (GMT+06:00) Dhaka.
Greenland Standard Time
Adjusts the DST start and end dates for the Greenland time zone.
Morocco Standard Time
Removes DST for the Casablanca time zone.
Pakistan Standard Time
Removes DST for the Islamabad, Karachi time zone.
Argentina Standard Time
Removes DST for the Buenos Aires time zone.
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A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next P1 that contains this hotfix.
To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Before you install this update, you must install the following products:
You do not have to restart the computer after you apply this hotfix.
The English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
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